Reliability Report -- 1999 - Pennsylvania Public Utility Commission

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SECTION 3 – STATISTICAL UTILITY PERFORMANCE DATA Statewide Summary The 2005 reliability data submitted by the EDCs indicates that two EDCs failed to meet their rolling 12-month performance standards for CAIDI and four EDCs failed to meet their rolling 12-month SAIFI and SAIDI performance standards. Six EDCs’ performances were better than their CAIDI benchmarks and five were better than their SAIFI benchmarks. The following table provides actual 2005 reliability performance for each EDC and the benchmarks and standards for each reliability index. Customer Average Interruption Duration Index (CAIDI) % Above (+) or % Above (+) or EDC 2005 Benchmark Standard Below (-) Standard Below (-) Benchmark Allegheny Power 195 170 204 -4.4% 14.7% Duquesne Light 98 108 130 -24.6% -9.3% Met-Ed (FE) 122 117 140 -12.9% 4.3% Penelec (FE) 151 117 141 7.1% 29.1% Penn Power (FE) 151 101 121 24.8% 49.5% PECO 99 112 134 -26.1% -11.6% PPL 125 145 174 -28.2% -13.8% UGI 119 169 228 -47.8% -29.6% Citizens 116 105 141 -17.7% 10.5% Pike County 109 178 240 -54.6% -38.8% Wellsboro 105 124 167 -37.1% -15.3% System Average Interruption Frequency Index (SAIFI) % Above (+) or % Above (+) or EDC 2005 Benchmark Standard Below (-) Standard Below (-) Benchmark Allegheny Power 1.15 1.05 1.26 -8.7% 9.5% Duquesne Light 0.98 1.17 1.40 -30.0% -16.2% Met-Ed (FE) 1.70 1.15 1.38 23.2% 47.8% Penelec (FE) 1.87 1.26 1.52 23.0% 48.4% Penn Power (FE) 1.56 1.12 1.34 16.4% 39.3% PECO 1.02 1.23 1.48 -31.1% -17.1% PPL 0.97 0.98 1.18 -18.1% -1.4% UGI 0.64 0.83 1.12 -42.9% -22.9% Citizens 0.10 0.20 0.27 -63.0% -50.0% Pike County 1.85 0.39 0.53 249.1% 374.4% Wellsboro 1.37 1.23 1.66 -17.5% 11.4% System Average Interruption Duration Index (SAIDI) % Above (+) or % Above (+) or EDC 2005 Benchmark Standard Below (-) Standard Below (-) Benchmark Allegheny Power 224 179 257 -12.8% 25.1% Duquesne Light 97 126 182 -46.7% -23.0% Met-Ed (FE) 209 135 194 7.7% 54.8% Penelec (FE) 284 148 213 33.3% 91.9% Penn Power (FE) 236 113 162 45.7% 108.8% PECO 100 138 198 -49.5% -27.5% PPL 121 142 205 -41.0% -14.8% UGI 76 140 256 -70.3% -45.7% Citizens 12 21 38 -68.4% -42.9% Pike County 202 69 127 59.1% 192.8% Wellsboro 144 153 278 -48.2% -5.9% Note: GREEN = better than benchmark; RED = worse than standard; BLACK = between benchmark and standard. Electric Service Reliability in Pennsylvania 7
Utility Specific Performance Data Allegheny Power On May 26, 2004, Allegheny Power filed a petition to amend its benchmarks, asserting that the recomputed benchmarks were unrealistic and artificially low. 20 On July 20, 2006, the Commission adopted an Order modifying the benchmarks and standards for Allegheny Power. Allegheny’s CAIDI benchmark was decreased from 178 minutes to 170 minutes; the SAIFI benchmark was increased from 0.67 interruptions to 1.05 interruptions; and the SAIDI benchmark was increased from 119 minutes to 179 minutes. Allegheny’s overall reliability performance in 2005 was consistent with its performance in the calendar year 2004. Allegheny’s 2005 SAIFI, CAIDI and SAIDI values were between the newly adjusted benchmarks and the standards. The calculation of the 2005 reliability indices exclude outage data relating to one major event, which was approved by the Commission: October 24 - 30, 2005: heavy, wet snowstorm; 69,676 customer interruptions excluded; 83,330,542 customer minutes excluded. For the 2005 calendar year, Allegheny filed three outage reports pursuant to 52 Pa. Code § 67.1, including one for the major event discussed above. In 2005, Allegheny experienced 797,656 service interruptions with a total duration of 155.7 million minutes, which was about 4.6% higher than that which was reported last year. The following graphs depict trends in the duration of service interruptions for the Allegheny system from 1994 to 2005, and for the four quarters of 2005 and the first quarter of 2006, compared to the established benchmarks and standards. 20 Docket No. M-00991220 F0003. 8 Pennsylvania Public Utility Commission
Page 1 and 2: ElectricService Reliabilityin Penns
Page 3 and 4: EXECUTIVE SUMMARY The Electricity G
Page 5 and 6: TABLE OF CONTENTS SECTION 1 - INTRO
Page 7 and 8: Subsequently, on December 16, 1999,
Page 9 and 10: included is the data used in calcul
Page 11: the reliability performance of the
Page 15 and 16: As seen here, CAIDI improved from t
Page 17 and 18: Allegheny Power System 2005 Outage
Page 19 and 20: Duquesne Light Company Customer Ave
Page 21 and 22: The graph below shows the distribut
Page 23 and 24: Metropolitan Edison Company Custome
Page 25 and 26: Metropolitan Edison Company System
Page 27 and 28: the SAIFI benchmark was increased f
Page 29 and 30: The rolling 12-month averages for t
Page 31 and 32: 14.0% of total incidents, 18.5% of
Page 33 and 34: Pennsylvania Power Company Customer
Page 35 and 36: Pennsylvania Power Company System A
Page 37 and 38: In 2005, PECO’s customers experie
Page 39 and 40: PECO Energy Company System Average
Page 41 and 42: PECO Energy Company 2005 Outage Cau
Page 43 and 44: PPL Electric Utilities Corporation
Page 45 and 46: PPL’s SAIFI was below the benchma
Page 47 and 48: UGI Utilities, Inc. Customer Averag
Page 49 and 50: UGI Utilities, Inc. System Average
Page 51 and 52: determine the type of each event ex
Page 53 and 54: Citizens' Electric Company System A
Page 55 and 56: Pike County Light & Power Company P
Page 57 and 58: Pike County Light & Power Company C
Page 59 and 60: For 2003 and 2004, SAIFI has been a
Page 61 and 62: November 28, 2005: severe weather e
Page 63 and 64:
Wellsboro Electric Company System A
Page 65 and 66:
SECTION 4 - INSPECTION AND MAINTENA
Page 67 and 68:
In addition to monitoring the relia
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Reliability Report -- 1999 - Pennsylvania Public Utility Commission

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